The 4th Law of Combat is which principle?

• A. Centralized Command
• B. Unity of Command
• C. Mission Command
• D. Decentralized Command

Answer: (D)

The main idea tested here is empowering decision-making at the level closest to the action to maintain speed and adaptability in changing conditions. The fourth law, Decentralized Command, is about the commander communicating a clear intent and the desired end state, then authorizing subordinates to act autonomously within those boundaries. This approach keeps operations moving quickly, enables timely responses to on‑the‑ground realities, and ensures everyone stays aligned with the overall mission.

Choosing centralization would slow things down because decisions would have to travel up the chain. Unity of Command ensures a single supervisor but doesn’t address who actually makes on-the-spot decisions. Mission Command describes the broader doctrine of command by intent, of which decentralization is a specific mechanism—so Decentralized Command best captures the particular principle being asked about.